Zhongshan Ophthalmic Center, Sun Yat-sen University

This study compares two different cataract surgery techniques to see which one helps patients see better in the first day after surgery. Researchers will randomly assign 128 adults (ages 50-90) with age-related cataracts to receive either intracapsular or supracapsular phacoemuls…

This study aims to find the best surgical technique for implanting an artificial lens in children born with a dislocated natural lens. Researchers will compare two different needle insertion points during a 'sutureless' surgery to see which one leads to better vision and fewer co…

This study aims to find the best needle placement for a specific eye surgery technique used in children with a congenital condition where the eye's lens is displaced. Researchers will compare two different needle insertion points (2mm vs. 2.5mm behind the edge of the cornea) to s…

This is a very early, first-in-human study to check if a new gene therapy drug called ZVS106e is safe for people with Stargardt disease, a genetic condition that causes vision loss. It will involve 9 participants who have a specific genetic mutation. Doctors will inject the drug …

This study is testing a new type of eyeglass lens designed to slow down the progression of nearsightedness in children and teenagers. Over two years, researchers will compare these special 'D.D.C' lenses to regular glasses in about 316 young participants in China. The goal is to …

This study aims to see if taking a daily supplement containing specific eye nutrients (lutein, meso-zeaxanthin, and zeaxanthin) for one year can improve contrast sensitivity—how well people see details in low-contrast situations—in healthy Chinese adults. Researchers will compare…

This study is testing whether a mobile messaging program called MyopiaEd can help prevent nearsightedness in children. Researchers will send eye health tips to parents of 1,330 third-grade students in China over one year. The goal is to see if these messages improve children's ey…

This study is testing a new approach to cataract surgery for people who are also very nearsighted. Researchers want to see if implanting a specific type of lens, set up in a 'monovision' style (one eye for distance, one for near), improves distance vision without glasses compared…

This study aims to establish a baseline and track progress on key eye health indicators in Xinxing County, China. It will enroll 3,000 local residents, including school children, seniors, and diabetic patients. Researchers will conduct vision tests, eye exams, and questionnaires …